Heating apparatus.



Patented Dec. '2.4," |90L J. scHuimAun.' HEATING APPARATUS.

(Applicatiqn Mod my 4, 1898.)

lSheets-Shinn I.

(lo Model.)

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(Applimion :ma my 4, 189s.)

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(No Indel.)

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witness@ UNITED VSTA-Tes,v

-- PATENT y Grinch.

JOHANN SCHUMANN, OFLEMBERG, AUSTRIA-HUNGARY.

H EATING APPRATU s..

SPECIFICATION foaming part of Letters Patent 110.689,75, dated December 24, 1901.

Application tied Mey 4, 1898. sean 110.679.728. un maar ,Y Y

To all whom t may concern; i

Be it known that I, JOHANN SGHUMANN, a subject of the Emperor ot' AustriaHungary,v residing at 'Lemberg," Galicia, lAustria-Hungary, have invented certainnew andv useful Improvements in Heating Apparatus,`of which the following is a'speciication.

The present invention concerns a heating apparatus having two smokeiu'eswiih regnlated openings, twocombustion-chambers,` and a. plurality of heat-distributing pipes.

In the annexed drawings this' apparatus is shown as applied, byway of'example, to aI stove. r

Figure 1 is a view iu elevation of a stove provided with my improved devices. Fig. 2 is a section on the liner s of Fig. 1. Fig. 3 is a section on the-line o wof Fig. 2. Fig. 4.

is a sectionon the lineo of Fig.l 2. Fig. 5 shows ve positions of the damper in the smoke-flue. Figs. 6, and 6b are sectional and detail views of the connection ot" the sxnoke-flues with the. stove. Figf7 is a section on line m 'rrofv Fig. 2. Fig. Sis a section onlinerltofFigE. e

Referring to the drawings, near' the center part of the stove isla vertical basin S .for the fuel, providedat its upper part with a. screen or trellishD and havingits lower part com-` muuicating with a lire-,box F by an opening" having inclined'rupper and lower sides. The grate P is arranged obliquely in the tire-box, the front end extending to within a short distance Aof the front of the combustion-cham'- ber, a slot or openings's being formed therebetween, and below the same is the water-V reservoir W, with the inlet-tube E, the waste-v cock H, and several openings T, above which a plate is ixed. Below'the reservoir is the ash-box with the door J. Passing around the f ucl-basin and {ire-box from the top to the bottom of the stove are several tubes a: connecting the upper or heating chamber with the lower or airchamber. At the rear of the' stove is a draft-pipe Q,-having itsl upper and lower ends open. lThe smoke-fluesA B, pro. vided with dampers a'b'and leading to the chimney, are located at the rear of the stove. The lsmoke-flue A being completely open, the fire is lighted on the lire-brick P, and the I basin S is thenilled with coal. The air en- Y tering the stove through the opening L of the door J feeds the lighted fuel, and this ignites the coalwhich is-above it at the slit or openings s. 'Iheroal in the fireplace F now burns and soon h eats their-on pipe Q. It is now time to regulate the tire and to utilize the second smoke-flue l5, the damper b of which, together with the damper a, rotates on acommon axle. rlhe air entering at L and serving Yto feed the fire divides under the grate in such a way that there is only about one half of this air utilized for keeping the tire burning, while theother halfwould escape' through' the tlue'B into the chimney. The greater part, however, ofthe air which would so escape is drawn from .the ue by the draftpipe Q. The coal burns lwiththe greatest. intensity at the opening s s of the basin S, and as soon as it is consumed tothe sizev corresponding with the width of the'opening it falls through this opening on the grate R below said opening, .where it is completely burned. VAs thecoal at the lower end of the fuel-box S is subjectedtoa high heat, the condition ofthe coal will be changed, and as -it moves downward to the slot ss allows the coal in rear thereof to be more intensely heated before kindling, thereby first yielding their sublimates to be more easily separated, burning afterward in` the form ofv coke. The di vision f air corresponds with the position of the dampers a b, and the coal burns with an intensity corresponding with the division of the air. l

The opening s s, formed by the fire-brick P, can'be placed according 4to the nature 0f the combustible. This brick P may be solid and with smooth surface, but for coal which burns with difficulty the brick may be provided with holes l() to allow a stronger current of air to pass through the coal, the lat.

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with the air and is brought partly into the fireplace F and partly through the smokeflue B into the chimney.

The smoke-fines A and B may have any desired section according to need. They may also be separated from each other, but are always provided with dampers joined to gether, so that if one of the pipes is closed the other is open in the same proportion.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a heating apparatus the combination with a suitable cylinder or shell, of a fuelbox having an inclined bottom, and with an opening at the lower extremity of the bottom, an air-chamber below said fuel-box, a heating-chamber above the fuel-box, and a plurality of flues or pipes communicating with said air-chamber and heating-chamber, substantially as set forth.

2. In a heating apparatus the combination with a suitable cylinder or shell, of a fuelbox having an inclined bott-om and with an opening at the lower extremity of said bottom, a heating-chamber above the fuel-box, an air-chamber below said fuel-box, and communicating therewith, a smoke-draft and a plurality of iiues or pipes, said draft and pipes communicating with the air-chamber below the fuel-box, and the heating-chamber in the upper part of the casing or shell, substantially as set forth. l

3. In a heating apparatus, the combination with a suitable cylinder or shell, of a fuelbox having an inclined bottom, and with an opening at the lower extremity of said bottom, an air-chamberbelow said fuel-box, and communicating therewith, a heating-chamber above the fuel-box, and communicating therewith, a smoke-draft and a plurality ot' flues or pipes communicating with the heating and air chambers above and below the fuel-box, and a smoke-pipe having a division therein, the space on one side of said division communicating with the heating-chamber above the fuel-box, the space on the other side of said division communicating with the air-chamber below the fuel-box, and a double damper located in said smoke-pipe, and adapted to simultaneously close one division in the smoke-pipe and open the other, substantially as set forth.

In witness whereof I have hereunto signed my name, this 9th day of April, A. D. 1898, 5 

